Based on the Newton-Lawson Method Operating State Analysis of Power System Power Flow Calculations

With the construction of the third generation of smart grid, the grid structure of the power system is becoming more and more complex, and the power system power flow calculation, as one of the important calculations supporting the operation of the power system, has great reference significance for the early planning and later construction of the power network. By optimizing the operating state of the power system power flow calculation, the stability and reliability of the power system operation can be effectively improved. Therefore, based on the basic principles and mathematical model of power flow calculation of a power system, this paper uses MATLAB programming to implement power flow calculation based on the Newton-Lafson method based on the power system framework of IEEE standard 14 nodes and describes the structure of standard linear power system. In the case of knowing the initial parameters, calculate the power system power flow at this moment, analyze the current state of the power system, summarize the strong correlation between reactive power and voltage, and propose measures to reasonably regulate the transformer by changing the size of the tap. It is of guiding significance for the next stage of power dispatch to ensure the safe and stable operation of the system.